I heard the Messenger of Allah ﷺ say: There were two men among Banu Isra'il, who were striving for the same goal. One of them would commit sin and the other would strive to do his best in the world. The man who exerted himself in worship continued to see the other in sin. He would say: Refrain from it. One day he found him in sin and said to him: Refrain from it. He said: Leave me alone with my Lord. Have you been sent as a watchman over me? He said: I swear by Allah, Allah will not forgive you, nor will he admit you to Paradise. Then their souls were taken back (by Allah), and they met together with the Lord of the worlds. He (Allah) said to this man who had striven hard in worship; Had you knowledge about Me or had you power over that which I had in My hand? He said to the man who sinned: Go and enter Paradise by My mercy. He said about the other: Take him to Hell. AbuHurayrah said: By Him in Whose hand my soul is, he spoke a word by which this world and the next world of his were destroyed.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ كَانَ رَجُلاَنِ فِي بَنِي إِسْرَائِيلَ مُتَآخِيَيْنِ فَكَانَ أَحَدُهُمَا يُذْنِبُ وَالآخَرُ مُجْتَهِدٌ فِي الْعِبَادَةِ فَكَانَ لاَ يَزَالُ الْمُجْتَهِدُ يَرَى الآخَرَ عَلَى الذَّنْبِ فَيَقُولُ أَقْصِرْ فَوَجَدَهُ يَوْمًا عَلَى ذَنْبٍ فَقَالَ لَهُ أَقْصِرْ فَقَالَ خَلِّنِي وَرَبِّي أَبُعِثْتَ عَلَىَّ رَقِيبًا فَقَالَ وَاللَّهِ لاَ يَغْفِرُ اللَّهُ لَكَ أَوْ لاَ يُدْخِلُكَ اللَّهُ الْجَنَّةَ فَقُبِضَ أَرْوَاحُهُمَا فَاجْتَمَعَا عِنْدَ رَبِّ الْعَالَمِينَ فَقَالَ لِهَذَا الْمُجْتَهِدِ أَكُنْتَ بِي عَالِمًا أَوْ كُنْتَ عَلَى مَا فِي يَدِي قَادِرًا وَقَالَ لِلْمُذْنِبِ اذْهَبْ فَادْخُلِ الْجَنَّةَ بِرَحْمَتِي وَقَالَ لِلآخَرِ اذْهَبُوا بِهِ إِلَى النَّارِ قَالَ أَبُو هُرَيْرَةَ وَالَّذِي نَفْسِي بِيَدِهِ لَتَكَلَّمَ بِكَلِمَةٍ أَوْبَقَتْ دُنْيَاهُ وَآخِرَتَهُ  

[Machine] I entered the mosque of the Prophet ﷺ and there I saw an elderly man with a white beard. He had a radiant face and was accompanied by a handsome young man. The elderly man said, "O Yamamyy, come here. Never say to a person, 'May Allah never forgive you,' for by Allah, Allah will never admit you into Paradise. I asked, "And who are you? May Allah have mercy on you." He said, "I am Abu Huraira." I said, "Indeed, these are words that one of us may say to his family or his servant when angry." He said, "Do not say it. I heard the Messenger of Allah ﷺ say, 'There were two men from the children of Israel who were close to each other. One of them was diligent in worship while the other one was a sinner. The diligent one saw the sinner committing a sin and told him to stop. The sinner replied, 'Leave me alone, I beg you, by my Lord.' The diligent one repeated his advice, but the sinner continued to say, 'Leave me alone, I beg you, by my Lord,' until he found him one day committing a sin that overwhelmed him. The diligent one said, 'Woe to you, stop!' The sinner replied, 'Leave me alone, I beg you, by my Lord. Were you appointed as a watcher over me?' The diligent one said, 'By Allah, Allah will never forgive you or admit you into Paradise.' Then an angel was sent to them, who took their souls. They were brought in the presence of Allah, the Most High. He said, 'My servants, to the diligent one, were you a knowledgeable person or did you have the power to do what was in my hands? Or did you prevent my mercy from reaching my slave?' Then Allah commanded, 'Take the diligent one to Paradise and throw the sinner into the Fire.'" I swear by Allah in whose hand is my soul, that a single word could cause his worldly life and hereafter to be ruined."  

دَخَلْتُ مَسْجِدَ الرَّسُولِ ﷺ فَإِذَا أَنَا بِشَيْخٍ مُصَفِّرٍ رَأْسَهُ بَرَّاقِ الثَّنَايَا مَعَهُ رَجُلٌ أَدْعَجُ جَمِيلُ الْوَجْهِ شَابٌّ فَقَالَ الشَّيْخُ يَا يَمَامِيُّ تَعَالَ لَا تَقُولَنَّ لِرَجُلٍ أَبَدًا لَا يَغْفِرُ اللَّهُ لَكَ وَاللَّهِ لَا يُدْخِلُكَ اللَّهُ الْجَنَّةَ أَبَدًا قُلْتُ وَمَنْ أَنْتَ؟ يَرْحَمُكَ اللَّهُ قَالَ أَنَا أَبُو هُرَيْرَةَ قُلْتُ إِنَّ هَذِهِ لَكَلِمَةٌ يَقُولُهَا أَحَدُنَا لِبَعْضِ أَهْلِهِ أَوْ لِخَادِمِهِ إِذَا غَضِبَ عَلَيْهَا قَالَ فَلَا تَقُلْهَا إِنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ «كَانَ رَجُلَانِ مِنْ بَنِي إِسْرَائِيلَ مُتَوَاخِيَيْنِ أَحَدُهُمَا مُجْتَهِدٌ فِي الْعِبَادَةِ وَالْآخَرُ مُذْنِبٌ فَأَبْصَرَ الْمُجْتَهِدُ الْمُذْنِبَ عَلَى ذَنْبٍ فَقَالَ لَهُ أَقْصِرْ فَقَالَ لَهُ خَلِّنِي وَرَبِّي قَالَ وَكَانَ يُعِيدُ ذَلِكَ عَلَيْهِ وَيَقُولُ خَلِّنِي وَرَبِّي حَتَّى وَجَدَهُ يَوْمًا عَلَى ذَنْبٍ فَاسْتَعْظَمَهُ فَقَالَ وَيْحَكَ أَقْصِرْ قَالَ خَلِّنِي وَرَبِّي أَبُعِثْتَ عَلَيَّ رَقِيبًا؟ فَقَالَ وَاللَّهِ لَا يَغْفِرُ اللَّهُ لَكَ أَبَدًا أَوْ قَالَ لَا يُدْخِلُكَ اللَّهُ الْجَنَّةَ أَبَدًا فَبُعِثَ إِلَيْهِمَا مَلَكٌ فَقَبَضَ أَرْوَاحَهُمَا فَاجْتَمَعَا عِنْدَهُ جَلَّ وَعَلَا فَقَالَ رَبُّنَا لِلْمُجْتَهِدِ أَكُنْتَ عَالِمًا؟ أَمْ كُنْتَ قَادِرًا عَلَى مَا فِي يَدِي؟ أَمْ تَحْظُرُ رَحْمَتِي عَلَى عَبْدِي؟ اذْهَبْ إِلَى الْجَنَّةِ يُرِيدُ الْمُذْنِبَ وَقَالَ لِلْآخَرِ اذْهَبُوا بِهِ إِلَى النَّارِ» فَوَالَّذِي نَفْسِي بِيَدِهِ لَتَكَلَّمَ بِكَلِمَةٍ أَوْبَقَتْ دُنْيَاهُ وَآخِرَتَهُ «  

"كَانَ رَجُلان فِي بَنِي إِسْرَائِيلَ مُتَوَاخِيَانِ، وَكَانَ أحَدُهُمَا مُذْنِبٌ، وَالآخَرُ مُجْتَهِدٌ فِي الْعِبَادَةِ وَكَانَ لَا يَزَالُ الْمُجْتَهِدُ يَرَى الآحر عَلَى الذنْبِ فَيَقُولُ: أقْصِر،

فَوَجَدَهُ يَوْمًا عَلَى ذَنْب، فَقَال لَهُ، أقْصِرْ فَقَال. خَلِّنِى وَرَبِّى، أبعِثْتَ عَلَيَّ رَقِيبًا؟ فَقَال. وَاللهِ لَا يَغْفِرُ اللهُ لَكَ، أو لَا يُدْخِلُكَ الله الجَنَّةَ، فَقُبِص رُوحُهما فاجْتَمعَا عِندَ رَبِّ العَالمِينَ فَقَال لِهَذَا الْمُجْتَهِد: أَكُنْتَ بِى عَالِمًا، أو كُنْتَ عَلَى مَا في يَدَيَّ قَادِرًا؟ ، وقَال لِلمُذْنِبِ: اذهَبْ فَادْخُلَ الْجَنَّةَ بِرَحْمَتِى، وَقَال للآخَرِ: اذهَبُوا به إِلَى النَّارِ".  

"عَنْ أَبِي هُرَيْرَةَ قَالَ: لاَ تَقُولَنَّ لأَحَدٍ: لاَ يَغْفِرُ اللهُ - تَعَالَى- لَكَ، وَلَا يُدْخِلُكَ الجَنَّةَ؛ فَإِنِّي سَمْعِتُ رَسُولَ اللهِ ﷺ يَقُولُ: كَانَ رَجُلَانِ مِنْ بَني إسْرَائِيلَ، كَانَ أَحَدُهُمَا رهق، وَالآخَرُ عَابِدٌ، فكَانَ لاَ يَزَالُ يَقُولُ لَهُ: أَلَا تَكُفُّ أَلَا تُقْصِرُ؟ فَيَقُولُ مَالِي وَلَكَ؟ دَعْنِي وَربِّي، فَهَجَمَ عَلَيْهِ يَوْمًا فَإِذا هُوَ عَلَى كَبِيرةٍ، فَقَالَ: وَاللهِ لاَ يَغْفِرُ اللهُ لَكَ، واللهِ لا يُدْخِلُكَ الجَنَّةَ، فَبَعَثَ اللهُ - تَعَالَى- إِلَيْهمَا مَلَكًا فَقَبضَ أَرْوَاحَهُمَا، فَلَمَّا قَدِمَ بِهِمَا عَلَى اللهِ قَالَ لِلْمُذْنِبِ: ادْخُلِ الجَنَّةَ بِرَحْمَتِي، وَقَالَ لِلْعَابِدِ: حَظَرْتَ عَلَى عَبْدي رَحْمَتي؟ أَكُنْتَ قَادِرًا عَلَى مَا تَحْتَ يَدي؟ انْطَلِقُوا بِهِ إلىَ النَّارِ، قَالَ رَسُولُ اللهِ ﷺ : والذي نَفْسي بِيَدِهِ لَقَدْ تَكَلَّمَ بِكَلَمِةٍ أَوْبَقَتْ دُنْيَاهُ وآخِرَتَهُ".